Help Pull particles in a given direction

[xkalibrx]

Thanks for your reply, it was quite helpful!
We have another question, sorry to bother you.
Suppose we would change the rope radius at a given particle. Is it possible to change the center position? I'm not sure how to phrase this but I hope the image gives an idea of the effect we are looking for. We want the bulge to be a little bit to the side of the rope.